The true meaning of a dark horse may be hard to determine given that it often relates to an underdog. That has not always been the case in the Professional Fighters League. As it relates to the light heavyweight bracket, the dark horse has taken the form of an extremely talented competitor.
Out of action since 2023, Sullivan Cauley—a highly touted prospect and accomplished wrestler who spent his collegiate career at Arizona State University—will make his promotional debut when his light heavyweight quarterfinal opposite Marcelo Nunes helps buoy the PFL 2025 World Tournament 4 undercard on Thursday at Universal Studios in Orlando, Florida.